WO2017071373A1

WO2017071373A1 - Control method for operating storage device and storage device

Info

Publication number: WO2017071373A1
Application number: PCT/CN2016/095534
Authority: WO
Inventors: 邱鑫; 吴登奔; 陈立钢
Original assignee: 华为技术有限公司
Priority date: 2015-10-28
Filing date: 2016-08-16
Publication date: 2017-05-04
Also published as: CN106648440B; US20180246675A1; US10656874B2; CN106648440A

Abstract

Disclosed are a control method for operating a storage device, a storage device and a management node. The method comprises: receiving at least one request sent by at least one management node (110); when a request in the at least one request is an authority application request, according to a current authority state, determining whether to endow a management node sending the authority application request with an operating authority (120); and when a request in the at least one request is an operating request, according to the current authority state, determining whether a management node sending the operating request has an operating authority, and when the management node sending the operating request has the operating authority, executing an operation according to the operating request (130). Therefore, by endowing a management node in a plurality of management nodes requesting to apply for an authority with an operating authority, and executing a corresponding operation according to an operating request sent by the management node having the operating authority, a conflict caused due to the fact that a plurality of management nodes simultaneously operate a storage device is avoided, and at the same time, the problem that consecutive serial operations are interrupted is avoided.

Description

Control method and storage device for operating storage device

Technical field

The present invention relates to the field of dynamic databases, and in particular, to a control method and a storage device for operating a storage device.

Background technique

The non-volatile storage (Non-Volatile Memory Express, NVMe) protocol supports device management commands and can directly operate the storage device. This prevents the existing baseboard management controller (BMC) from directly operating on the storage device. Problem, but because the NVMe protocol can support multi-channel management, for example, the NVMe Management Interface (NVMe-MI) protocol can support Inter-Integrated Circuit (IIC or I2C), external Multi-channel, such as the Peripheral Component Interconnect Express (PCIE), manages the Management Component Transport Protocol (MCTP) at the same time. As shown in Figure 1, the management node sends a management command to the storage device through the NVMe management interface. The administrative command can be an operation command to read or write to the storage device. As shown in FIG. 2, the storage device may include multiple management interfaces. When multiple management nodes send management commands through multiple management interfaces, there may be a problem that multiple management nodes access the storage device at the same time.

Summary of the invention

An embodiment of the present invention provides a method, a storage device, and a management node for operating a storage device, by which one of a plurality of management nodes that request permission to apply for an operation authority is operated, and the operation is sent according to the management node having the operation authority. Requesting to perform the corresponding operation avoids conflicts between multiple management nodes operating the storage device at the same time.

In a first aspect, an embodiment of the present invention provides a method for controlling a storage device, where the method includes: receiving a request sent by at least one management node, determining a type of the received request; and when the request is a request permission request, according to the current permission status Determining whether to grant the operation authority of the management node that sends the request permission request; when the request is an operation request, determining the tube for sending the operation request according to the current permission status Whether the node has the operation authority, and when it is determined that the management node that sends the operation request has the operation authority, the operation is performed according to the operation request.

In the first aspect, the current privilege state records the state of the privilege granted by the access interface and the state of the execution request. In the first aspect, the current privilege state may be implemented by querying the state table, or may be implemented by other means.

According to the above technical solution, by determining the type of the received request, determining, according to the type of the request, one of the at least one management node that is to be sent the request for permission to operate, or determining whether the management node that sends the operation request has the operation authority, and according to An operation request sent by a management node with operation authority performs an operation, thereby avoiding a conflict problem in which multiple management nodes simultaneously perform operations.

With reference to the first aspect, in a first possible implementation manner of the first aspect, when determining, by one of the at least one management node that sends the request permission request, the status table is updated, and the status table is used to pass the status table. It is determined whether the management node that sends the application permission request can give the operation authority, or whether the management node that sends the operation request has the operation authority to determine the operation authority and legality of the multiple management node.

With reference to the first implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the management node operation authority of the at least one management node that sends the request permission request is updated, and after updating the state table, The management node that sends the request for permission to send the response message is sent, so that the management node that requests the permission request sends an operation request to the storage device according to the response message.

With reference to the first aspect, in a third possible implementation manner of the first aspect, determining, by the state table, whether the management node that sends the operation request has the operation authority includes: whether the management node with the operation authority marked in the query status table is sent The management node that operates the request, when the management node with the operation authority marked in the status table is the management node that sends the operation request, determines that the management node that sends the operation request has the operation authority.

With reference to any one of the foregoing possible implementation manners, in a fourth possible implementation manner of the first aspect, after the operation is performed according to the operation request sent by the management node having the operation authority, the method further includes a release operation. Permissions to give this action permission to the tube that sends other requests Node.

In conjunction with the first aspect, in a fifth possible implementation manner of the first aspect, after receiving the request sent by the at least one management node, the method further includes serializing the received request for use according to a chronological order of receiving the request Receive requests in turn.

In a second aspect, the embodiment of the present invention provides a control method for operating a storage device, where the method includes: sending a request permission request to a storage device, where the storage device grants a management node operation permission to send an application permission request according to the application permission request. And sending a response message to the management node; receiving a response message sent by the storage device; and sending an operation request to the storage device according to the response message, so that the storage device performs an operation according to the operation request.

According to the control method of the operation storage device provided by the second aspect, before the operation of the storage device, the operation authority is first applied to the storage device, and in the case of having the operation authority, the operation request is sent, so that the storage device performs the operation according to the operation request. Avoid conflicts caused by multiple operation requests simultaneously performing operations on the storage device.

In a third aspect, an embodiment of the present invention provides a storage device, where the storage device includes: a receiving module and a processing module, where the receiving module is configured to receive a request sent by at least one management node; and the processing module is configured to determine a type of the request, when the request is When requesting the permission request, determining whether to grant the operation authority of the management node that sends the request permission request; when the request is an operation request, determining whether the management node that sends the operation request has the operation authority, when the management node that sends the operation request has the operation authority, according to The operation requests an action.

In the third aspect, the processing module may determine, by the state table, whether to grant the management node operation authority for transmitting the application permission request, or determine whether the management node that sends the operation request has the operation authority according to the state table.

By determining the type of the received request, determining whether to give the management node that sends the request the operation authority or determining whether the operation authority is given according to the type of the request, the conflict problem caused by the plurality of management nodes performing the operation can be avoided.

In conjunction with the third aspect, in a first possible implementation of the third aspect, the processing module is further configured to: When the management node operation authority for transmitting the application permission request is given, the status table is updated for determining whether the management node that sends the application permission request can give the operation authority through the status table, or whether the management node that sends the operation request has the operation authority It is used to judge the operation authority and legality of multiple management nodes.

In a second possible implementation manner of the third aspect, the storage device further includes a sending module, configured to send a response message to the management node that sends the request permission request, in a second possible implementation manner of the third aspect, The management node for requesting the permission request sends an operation request to the storage device according to the response message.

With reference to the third aspect, in a third possible implementation manner of the third aspect, the processing module is configured to query whether the management node marked in the status table is a management node that sends an operation request; when the management node marked in the status table is sent When the requested management node is operated, it is determined that the management node that sent the operation request has the operation authority.

In conjunction with any one of the foregoing possible implementation manners, in a fourth possible implementation manner of the third aspect, the storage device further includes a release module, configured to release the operation authority, so as to send the operation authority to the sending Other requested management nodes.

In conjunction with the third aspect, in a fifth possible implementation of the third aspect, the processing module is further configured to serialize the request to facilitate parsing in chronological order based on the received request.

In a fourth aspect, an embodiment of the present invention provides a management node, where the management node includes a sending module and a receiving module, and the sending module is configured to send an application permission request to the storage device, where the storage device is used to perform an operation according to the received application permission request. And the receiving module sends a response message to the management node that sends the request permission request; the receiving module is configured to receive the response message sent by the storage device; and the sending module sends an operation request to the storage device according to the response message, where the storage device performs the operation according to the operation request.

By first sending an application operation request to the storage device to apply for the operation authority, after obtaining the operation authority, the corresponding operation is performed according to the operation request, thereby avoiding the conflict problem caused by the operation request between the multiple management nodes.

In a fifth aspect, an embodiment of the present invention provides a storage device, where the storage device includes at least one access Question interfaces, such as: service access interfaces, management interfaces, memory, and processors;

a memory for storing instructions and permission states;

a processor for invoking instructions in the memory in memory to implement:

Receiving, by the at least one access interface, at least one request sent by the at least one management node; when one of the at least one request is requesting the permission request, determining, according to the current permission status, whether to grant the operation authority of the management node that sends the application permission request; When one of the requests is an operation request, according to the current permission status, it is determined whether the management node that sends the operation request has the operation authority, and when the management node that sends the operation request has the operation authority, the operation is performed according to the operation request.

In a sixth aspect, an embodiment of the present invention provides a non-transitory computer readable storage medium storing one or more programs, wherein the one or more programs include instructions that, when executed by a storage device, cause the storage device Perform the following events:

Receiving at least one request sent by the at least one management node; when one of the at least one request is a request permission request, determining, according to the current permission status, whether to grant the management node operation authority for sending the application permission request; when one of the at least one request When the request is an operation request, according to the current permission status, it is determined whether the management node that sends the operation request has the operation authority, and when the management node that sends the operation request has the operation authority, the operation is performed according to the operation request.

In the above aspects, the current privilege state is the state in which the privilege recorded in the memory is granted the privilege and the state in which the request is executed when the request is received. The permission status can be expressed in the form of a status table or in other logical ways.

Based on the foregoing technical solution, the control method, the storage device, and the management node for operating the storage device provided by the embodiment of the present invention, the storage device operates the permission by one of the plurality of management nodes that are requested to apply for the permission, and according to the operation authority The operation request sent by the management node performs the corresponding operation, which avoids the conflict of multiple management nodes simultaneously operating the storage device, and avoids the problem that the serial serial operation is interrupted.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will be The drawings to be used are briefly described. It is obvious that the drawings described below are only some embodiments of the present invention, and those skilled in the art can also use these without any creative work. The drawings obtain other figures.

1 is a layered diagram of a NVME management system in the prior art;

2 is a schematic structural diagram of an NVME management subsystem in the prior art;

FIG. 3 is a schematic flowchart of a method for controlling a storage device according to an embodiment of the present disclosure;

4 is a schematic diagram of a state table according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of a method for controlling a storage device according to another embodiment of the present invention;

FIG. 6 is a schematic flowchart of a method for controlling a storage device according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a storage device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a storage device according to another embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a management node according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a storage device according to another embodiment of the present invention.

detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.

The method, management node and storage device provided by the embodiments of the present invention are applied to a non-volatile storage (Non-Volatile Memory Express, NVMe) protocol, and the NVMe can reduce data read and write delays and provide higher performance. The NVMe can support the device management command and directly operate the storage device. The storage device can receive the operation request sent by multiple management nodes at the same time. The management node can be a Baseboard Management Controller (BMC) or a host. The request may be a read or write operation command. When multiple Hosts or BMCs access the storage device at the same time, the mutual exclusion of the operation of the storage device may occur, or for example, some serial operations may be performed during the execution of the corresponding operation. The operation request causes a problem that the serial serial operation is interrupted. In this case, the storage device first assigns the authority to perform the operation to a management node before the operation is performed, and the storage device sends the information according to the management node having the authority. The operation request performs the corresponding operation, and after the execution is completed, the authority is released for other management nodes to perform other operations.

In the embodiment of the present invention, the storage device is a device for storing information, and the device may be a hard disk, and includes: a solid state hard disk (for example, an SSD disk), a mechanical hard disk (HDD traditional hard disk), and the like having a device for storing information.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

FIG. 3 is a schematic flowchart of a method for controlling a storage device according to an embodiment of the present invention. As shown in FIG. 3, an execution entity of the method 100 is a storage storage device, and the method 100 includes:

110. Receive at least one request sent by at least one management node.

120. When one of the at least one request is a request permission request, determine, according to the current permission status, whether to grant the operation authority of the management node that sends the application permission request;

130. When one of the at least one request is an operation request, determine, according to the current permission status, whether the management node that sends the operation request has an operation authority, and when the management node that sends the operation request has an operation authority, execute according to the operation request. operating.

Specifically, in the embodiment of the present invention, the storage device is a device for storing information, and the device may be a hard disk including: a solid state hard disk (such as an SSD disk), a mechanical hard disk (HDD traditional hard disk), or the like, and may also have other storage information. device. The management node can be a host or a BMC. In 110, the storage device receives a request sent by multiple management nodes, where the request may be an application permission request or an operation request; the storage device sequentially determines the type of the received request, and determines whether the received request is an application permission request or an operation request. In 120, when the received request is a request permission request, the storage device determines, according to the current permission status, whether there is a right to the management node that sends the request permission request.

In the embodiment of the present invention, the current permission status may be determined by querying the status table to determine whether there is an operation authority assigned to the management node that sends the application permission request, or whether the current status is performing an operation. In the embodiment of the present invention, the storage device may further determine the current permission state according to a logical manner of other predetermined settings. In the embodiment of the present invention, the current permission state is stored in the request for receiving the request. time.

For example, as shown in FIG. 4, the status table can be divided into two groups, one group is a permission status group, the other group is a request execution status group, the authority status group is used to indicate the operation authority of each management node, and the execution request status group is used. Whether the record storage device is performing the request operation. In the privilege status group, the privilege status corresponding to the management node indicates that there is an operation authority with "1", and "0" indicates that the corresponding management node does not have operation authority.

When the storage device does not currently perform an operation and does not assign the operation authority to other management nodes, as shown in A of FIG. 4, the permission status of each management node in the authority status group and the status of the request execution status group are respectively “0”. At this time, the storage device can assign the operation authority to the management node that sends the request permission request. During the same period of time, the storage device allows a management node to obtain the operation authority. When the storage device receives the management node, for example, the application permission command sent by the BMC0, the storage device can assign the operation authority to the management node BMC0, as shown in B of FIG. The authority status flag BMC0 has an operation authority, which is denoted as "1", and a management node that does not have an operation authority, for example, BMC1, BMC2, and BMC3 are respectively marked and designated as "0".

In 130, when the received request is an operation request, determining, according to the status table, whether the management node that sends the operation request has an operation authority, as shown in B of FIG. 4, determining whether the management node that sends the operation request is recorded in the status table. The management node with the operation authority is the same management node. Here, it should be noted that in the entire system, each management node has a unique identifier or name to ensure that the management node with operation authority recorded in the status table is The management node that sends the operation request is the same management node. When the storage device determines that the management node that sends the operation request is the same management node as the management node that has the operation authority recorded in the state table, performs a corresponding operation according to the operation request, where the operation is a read or write performed by the management node on the storage device. operating. When the operation is performed, the storage device can automatically update the state table and set the state table to the execution state, that is, as shown in C of FIG. 4, the state of the request execution state group is updated from the unexecuted operation state "0" to the execution state. "1", so that when the storage device receives the operation request sent by other management nodes, for example, BMC1, BMC2, and BMC3, the operation is no longer performed according to the corresponding operation request, thereby preventing the storage device from executing multiple tubes at the same time. The problem that the operation request sent by the node is mutually exclusive and the operation requests sent by the multiple management nodes are mutually exclusive can also prevent the serial operation from being interfered or interrupted by the operation request sent by other management nodes.

After the management node BMC0 performs the corresponding operation, the storage device automatically marks the execution request status table in the status table as “0”, indicating that the operation status is not performed, and the status table is as shown in D of FIG. 4 .

It should be noted that, in the embodiment of the present invention, the operation request may be a read operation, a write operation, or other operations.

According to the method for controlling the operation of the storage device provided by the embodiment of the present invention, the storage device performs the operation authority of the management node by assigning one of the plurality of management nodes requesting the application authority, and executes the corresponding operation according to the operation request sent by the management node having the operation authority. The operation avoids the conflict of multiple management nodes operating the storage device at the same time, and avoids the problem that the serial serial operation is interrupted.

It should be understood that, in the embodiment of the present invention, the request may be a predefined set of requests, and when the storage device performs a partial predefined request, the storage device performs other predefined requests.

It should be understood that, in the embodiment of the present invention, the privilege state group may also indicate that the corresponding management node has the operation authority with "0", the corresponding management node does not have the operation authority with "1", or the privilege state group may be according to the computer. The other hexadecimal numbers used to indicate that the management node has the operation authority are not limited in the embodiment of the present invention.

It should be noted that, in the embodiment of the present invention, the data definition of the state table is extensible, and is not limited to the data of the state table provided by the embodiment of the present invention.

Optionally, as another embodiment of the present invention, as shown in FIG. 5, determining, according to the state table, whether a management node that sends an operation request has an operation right includes:

131. Query whether the management node marked in the status table is a management node that sends an operation request;

132. When the management node marked in the status table is the management node that sends the operation request, it is determined that the management node that sends the operation request has the operation authority.

Specifically, in the embodiment of the present invention, each management node may be recorded in the status table and the operation authority of each management node is marked, and the storage device allows only one management node to have the operation right in the same time period. Limit, and mark the management node in the status table with operational permissions, other management nodes have no operational permissions, and mark the tokens that do not have operational permissions. When the management node with the operation authority is marked in the storage device query status table, and it is determined that the management node with the operation authority marked in the status table and the management node that sends the operation authority are the same management node, it is determined that the management node that sends the operation request has an operation. Permissions, the storage device can perform the corresponding operations according to the operation request.

For example, as shown in B of FIG. 4, the storage device queries each management node and the permission status stored in the status table, determines that the management node with the operation authority marked in the status table is BMC0, and the management node that sends the operation request is also BMC0, then determines The management node BMC0 has an operation authority, and the storage device can perform a corresponding operation according to an operation request sent by the management node BMC0.

According to the control method for operating the storage device provided by the embodiment of the present invention, one of the plurality of management nodes requesting the application authority is given the operation authority of the management node, and the corresponding operation is performed according to the operation request sent by the management node having the operation authority, The problem that multiple management nodes operate the storage device at the same time is avoided, and the serial operation of one management node is interrupted. At the same time, by verifying the identity of the management node that sends the operation request, it is ensured that the management node that sends the operation request is legal, and the serial operation is prevented from being interfered and interrupted by the operation request of other management nodes.

Optionally, as another embodiment of the present invention, after determining whether to grant the operation authority of the management node that sends the request permission request, the method 100 further includes:

140: Update the status table when the management node operation authority for sending the request permission request is given.

Specifically, when the storage device is assigned to one of the plurality of management nodes, the permission status of the management node is marked in the state table, and the query is used after the storage device receives the application permission request sent by the other management node. The status table determines whether the management node operation authority for sending the application permission is given. In the embodiment of the present invention, when a certain management node has been marked with the operation authority in the status table, the storage device does not assign the operation authority of the management node that sends the request permission request, and returns the application authority to the management node that sends the application permission request. Response message.

Optionally, in another embodiment of the present invention, as shown in FIG. 5, after updating the status table, the method 100 further includes:

150. Send a response message to the management node that sends the request permission request, so that the management node that requests the permission request sends an operation request to the storage device according to the response message.

Specifically, when the storage device is assigned to one of the plurality of management nodes, the status table is updated, and a response message for successfully applying the permission is sent to the management node that gives the operation authority, so that the management node receives the response message. Thereafter, an operation request is sent to the storage device.

In the embodiment of the present invention, after the storage device sends a response message to the management node that successfully grants the operation authority, the storage device may immediately receive the operation request sent by the management node and process the operation request; the storage device may also send the operation request to the management node. After the response message to the operation authority is successfully received, the operation permission request sent by the management node is received before the storage device processes the operation request sent by the management node. Each of the previously requested application permission requests needs to be processed, and a response message for requesting permission failure is returned to the corresponding management node, and then the corresponding operation is performed according to the received operation request sent by the management node.

Optionally, as another embodiment of the present invention, as shown in FIG. 5, after performing an operation according to the operation request, the method 100 further includes:

160, release the operation permission.

Specifically, after the storage device performs the operation according to an operation request, the storage device releases the operation authority, updates the state table, and marks the permission state of the management node BMC0 in the state table as “0”, and the state table is as shown in FIG. 4 As shown in the embodiment of the present invention, other management nodes may request a corresponding management node for a transmission operation that has just been performed by the storage device, or may be Any other management node other than this management node.

Optionally, as another embodiment of the present invention, after receiving the at least one request sent by the at least one management node, the method 100 further includes:

The request is serialized for parsing in accordance with the order in which the request was received.

Specifically, the storage device can receive the request sent by multiple management nodes at the same time. When the storage device receives the request sent by multiple management nodes at the same time, the storage device serializes the received request, and the received request is stored in the storage device. The stored requests are parsed in turn and restored to the original request.

According to the control method for operating the storage device provided by the embodiment of the present invention, one of the plurality of management nodes requesting the application authority is given the operation authority of the management node, and the corresponding operation is performed according to the operation request sent by the management node having the operation authority, The problem that multiple management nodes operate the storage device at the same time is avoided, and the serial operation of one management node is interrupted. At the same time, by verifying the identity of the management node that sends the operation request, it is ensured that the management node that sends the operation request is legal, and the serial operation is prevented from being interfered or even interrupted by the operation request of other management nodes.

It should be understood that, in the embodiment of the present invention, the state table of FIG. 4 is only for the detailed description of the technical solutions of the embodiments of the present invention, and does not limit the specific form of the state table of the embodiment of the present invention.

FIG. 6 is a flowchart of a method for controlling a storage device according to another embodiment of the present invention. The method is performed by the method 400. The method 400 includes:

Step 410: Send an application permission request to the storage device, where the storage device grants an operation permission for the management node that sends the application permission request according to the application permission request, and sends a response message to the management node;

420. Receive a response message sent by the storage device.

430. Send an operation request to the storage device according to the response message, for the storage device to perform an operation according to the operation request.

Specifically, in the embodiment of the present invention, the management node sends an application permission request to the storage device, so that when the storage device assigns the operation authority to the management node, the response message for successfully requesting the permission is sent to the management node; After the response message sent by the storage device, the operation request is sent to the storage device according to the response message, so that the storage device can perform the corresponding operation according to the operation request.

The method for controlling the operation of the storage device provided by the embodiment of the present invention, the management node firstly stores the storage device When the operation permission is applied, the operation request is sent to the storage device to perform the corresponding operation according to the operation request, thereby avoiding the mutual exclusion of operation requests caused by multiple management nodes accessing one storage device at the same time. It effectively guarantees the continuous execution of serial commands.

The method of controlling the operation of the storage device according to the embodiment of the present invention is described in detail above with reference to FIG. 3 to FIG. 6. The storage device and the management node according to the embodiment of the present invention will be described in detail below with reference to FIG. 7 to FIG.

FIG. 7 is a schematic structural diagram of a storage device according to an embodiment of the present invention. As shown in FIG. 7, the storage device 500 includes a receiving module 510 and a processing module 520.

The receiving module 510 is configured to receive at least one request sent by the at least one management node;

The processing module 520 is configured to determine, when one of the at least one request is a request permission request, whether to grant the operation authority of the management node that sends the request permission request;

The processing module 520 is further configured to: when one of the at least one request is an operation request, determine whether the management node that sends the operation request has an operation authority, and when the management node that sends the operation request has the operation authority, perform an operation according to the operation request.

Specifically, the receiving module 510 receives a request sent by multiple management nodes, where the request may be an application permission request or an operation request; the processing module 520 sequentially determines the received request, and determines whether the received request is an application permission request or an operation request. . When the received request is the request permission request, the processing module 520 may determine, according to the current state authority, whether the authority has been granted to the management node that sends the request permission request, and the current permission status may be determined by querying the status table, and the storage device according to the status table. Determining whether the current state is performing an operation. When the storage device does not currently perform an operation and does not assign the operation authority to another management node, the operation authority is assigned to the management node that sends the request permission request.

In the embodiment of the present invention, the processing module 520 may determine the current privilege state by using other logical modes that are preset, which is not limited in the embodiment of the present invention.

In the embodiment of the present invention, the operation request may be a read operation, a write operation, or other operations.

Optionally, as another embodiment of the present invention, the processing module 520 is further configured to: when the management node that sends the request permission request is given the operation authority, update the state table.

Specifically, when the processing module 520 assigns one of the plurality of management nodes to the operation authority, the authority status of the management node is marked in the status table, and the receiving module 510 receives the application permission request sent by the other management node. The processing module 520 queries the status table to determine whether to grant the operation authority of the management node that sends the application permission. In the embodiment of the present invention, when a certain management node has been marked with the operation authority in the status table, the processing module 520 does not assign the operation authority of the management node that sends the request permission request, and returns the application authority to the management node that sends the application permission request. Response message.

Optionally, as another embodiment of the present invention, as shown in FIG. 8, the storage device 500 further includes a sending module 530, configured to send a response message to the management node that is given the request for sending the permission, so as to facilitate the management node that requests the permission request. An operation request is sent to the storage device according to the response message.

In the embodiment of the present invention, the receiving module 510 may immediately receive an operation request sent by the management node after the sending module 530 sends a response message to the management node, and process the operation request; the receiving module 510 may also After the sending module 530 sends the response message indicating that the operation authority is successful to the management node, after receiving the application permission request sent by the plurality of other management nodes, the operation request sent by the management node is received, and the processing module 520 processes the management node. Before sending an operation request, it is necessary to process each request permission request received before, and to The responding management node returns a response message that the application authority fails, and performs corresponding operations according to the received operation request sent by the management node.

Optionally, as another embodiment of the present invention, the processing module 520 is specifically configured to:

Query whether the management node marked in the status table is a management node that sends an operation request;

When the management node marked in the status table is the management node that sends the operation request, it is determined that the management node that sent the operation request has an operation authority.

Specifically, in the embodiment of the present invention, each management node may be recorded in the status table and the operation authority of each management node may be marked, and the storage device allows one management node to have operation authority in the same time period, and marks the management in the status table. Nodes have operational privileges, and other management nodes have no operational permissions and mark tokens that do not have operational permissions. When the processing module 520 queries the management node with the operation authority in the status table, and determines that the management node with the operation authority marked in the status table and the management node that sends the operation authority are the same management node, the management node that determines the sending operation request has The operation authority, the processing module 520 can perform a corresponding operation according to the operation request.

Optionally, as another embodiment of the present invention, as shown in FIG. 8, the storage device 500 further includes a release module 540, configured to release the operation authority after the operation is completed according to the operation request.

Specifically, after the processing module 520 performs the operation according to an operation request, the operation authority is released, the status table is updated, and the permission status flag of the management node in the status table is modified to be a flag that does not have the operation authority, and is used for other management nodes. The send operation requests the corresponding action.

Optionally, as another embodiment of the present invention, the processing module 520 is further configured to serialize the request for parsing according to an order of receiving the request.

Specifically, the receiving module 510 can simultaneously receive the request sent by multiple management nodes. When the receiving module 510 simultaneously receives the request sent by multiple management nodes, the processing module 520 serializes the received request, and stores the received request. In the storage device, the stored requests are sequentially parsed and restored to the original request.

According to the storage device provided by the embodiment of the present invention, the operation authority of the management node is given by one of the plurality of management nodes that request the application permission, and the operation is sent according to the management node having the operation authority. The request to perform the corresponding operation avoids the conflict that multiple management nodes operate the storage device at the same time, and the serial operation of one management node is interrupted. At the same time, by verifying the identity of the management node that sends the operation request, it is ensured that the management node that sends the operation request is legal, and the serial operation is prevented from being interfered or even interrupted by the operation request of other management nodes.

It should be noted that, in the embodiment of the present invention, the foregoing and other operations and/or functions of the respective modules in the storage device 500 according to the embodiments of the present invention are respectively implemented in order to implement the respective processes of the methods in FIG. 1 and FIG. For the sake of brevity, it will not be repeated here.

FIG. 9 is a management node according to an embodiment of the present invention. The management node 700 includes: a sending module 710 and a receiving module 720.

The sending module 710 is configured to send a request permission request to the storage device, where the storage device grants the operation authority of the management node that sends the request permission request according to the application permission request, and sends a response message to the management node;

The receiving module 720 is configured to receive a response message sent by the storage device.

The sending module 710 is further configured to send an operation request to the storage device according to the response message, for the storage device to perform an operation according to the operation request.

Specifically, in the embodiment of the present invention, the sending module 710 sends an application permission request to the storage device, so that when the storage device assigns the operation authority to the management node, the response message for successfully requesting the permission is sent to the management node; and the receiving module 720 After receiving the response message sent by the storage device, the operation request is sent to the storage device according to the response message, so that the storage device can perform the corresponding operation according to the operation request.

With the management node provided by the embodiment of the present invention, the management node first applies for the operation authority to the storage device, and when the operation authority is available, sends an operation request to the storage device to perform corresponding operations according to the operation request, thereby avoiding multiple management nodes simultaneously. Access to a storage device caused by the mutual exclusion of operation requests, while effectively ensuring the continuous execution of serial commands.

It should be noted that, in the embodiment of the present invention, the management node 700 is in accordance with an embodiment of the present invention. The above and other operations and/or functions of the respective modules are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 5, and are not described herein again for brevity.

10 is a schematic structural diagram of another storage device according to an embodiment of the present invention. As shown in FIG. 10, the storage device 800 includes a memory 810, a processor 820, multiple access interfaces 830, multiple management interfaces 840, and a communication bus system. 850. The memory 810, the processor 820, the plurality of access interfaces 830, and the plurality of management interfaces 840 are connected by a communication bus system 850. among them,

a memory 810, configured to store an instruction;

The processor 820 is configured to invoke an instruction stored in the memory 810, and perform the following steps by using a receiving module, a processing module, and a sending module included in the processor 820:

Receiving, by the at least one access interface, at least one request sent by the at least one management node; and managing the request by using a management interface, when one of the at least one request is a request permission request, determining whether to give the sending according to the current permission status a management node operation authority for requesting a permission request; when one of the at least one request is an operation request, determining, according to the current permission state, whether the management node that sends the operation request has an operation authority, and when the management node that sends the operation request has an operation When permission is granted, the operation is performed according to the operation request.

In the embodiment of the present invention, the current permission state may record the permission state of each access interface and the execution state of the storage device in the form of a state table, and may also record the permission state and the execution state through other logical forms.

It should be noted that, in the embodiment of the present invention, the access interface 830 includes multiple interfaces, such as the access interface 1, the access interface 2, and the like, and the access interface N, N is an integer greater than or equal to 1. Management interface 840 also includes a plurality of interfaces, which may be represented by management interfaces 1 through N.

In the embodiment of the present invention, when the corresponding operation request is executed, the release module in the processor 820 releases the operation authority, so that the storage device gives the operation authority to other management nodes, and performs corresponding operations. It should be noted that, in the embodiment of the present invention, the other management node may request the corresponding management node for the operation of the management node just executed, or may be other than the management node. Node.

The storage device provided by the embodiment of the present invention avoids multiple by administering a management node operation authority to one of the plurality of management nodes requesting the application authority and performing an operation according to the operation request sent by the management node having the operation authority. The management node simultaneously operates the conflicts of the storage devices while avoiding the problem of continuous serial operations being interrupted.

It should be understood that, in the embodiment of the present invention, the processor 820 may be a central processing unit (CPU), and the processor 820 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The bus system 850 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 850 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 820 or an instruction in a form of software. The steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor 820. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 810, and the processor 820 reads the information in the memory 810 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

It should be noted that, in the embodiment of the present invention, the storage device 800 of the embodiment of the present invention may correspond to the storage device 500 of FIG. 6 and FIG. 7, and the foregoing and other modules of the storage device 800 according to the embodiment of the present invention. The operations and/or functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 1, FIG. 4 and FIG. 5, and are not described herein again for brevity.

Embodiments of the present invention provide a non-transitory computer readable storage storing one or more programs The medium, wherein the one or more programs include instructions that, when executed by the storage device, cause the storage device to perform the following events:

In the embodiment of the present invention, the current privilege state may be determined by querying the state table, and the state table records the state of the privilege granted by the access interface and the state of the execution request. In the embodiment of the present invention, the privilege state may also be embodied by other logical manners. The state of the request and the execution of the request are not limited in the embodiment of the present invention.

When the storage medium performs the operation according to the operation request, the operation authority is released, so that the operation authority is given to the management node requesting the permission request, and the corresponding operation is performed.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention. In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. Now.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a non-transitory computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method of various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent modifications are conceivable within the technical scope of the present invention. These changes or substitutions are intended to be included within the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A control method for operating a storage device, the method comprising:

Receiving at least one request sent by at least one management node;

When one of the at least one request is a request permission request, determining, according to the current permission status, whether to grant the operation authority of the management node that sends the application permission request;

When the one of the at least one request is an operation request, determining, according to the current permission status, whether the management node that sends the operation request has an operation authority, when the management node that sends the operation request has an operation authority, The operation is performed in accordance with the operation request.
The control method for operating a storage device according to claim 1, wherein determining whether to grant a management node operation authority for transmitting the application authority request or determining a management node for transmitting the operation request according to the state table according to a state table Whether it has operational rights.
The method of controlling a storage device according to claim 2, wherein after the determining whether to grant the operation authority of the management node that sends the request permission request, the method further comprises:

The status table is updated when the management node operation authority that sends the request permission request is given.
The control method for operating a storage device according to claim 3, wherein after the updating the state table, the method further comprises: sending a response message to a management node that is given the request to send the application permission, so that And the management node that requests the permission request sends an operation request to the storage device according to the response message.
The control method of the operation storage device according to claim 1, wherein the determining, according to the status table, whether the management node that sends the operation request has an operation authority comprises:

Querying whether the management node marked in the status table is a management node that sends the operation request;

When the management node marked in the status table is the management node that sends the operation request And determining, by the management node that sends the operation request, an operation authority.
The control method for operating a storage device according to any one of claims 1 to 5, wherein after the performing the operation according to the operation request, the method further comprises: releasing the operation authority.
The method of controlling a storage device according to claim 1, wherein after the receiving the at least one request sent by the at least one management node, the method further comprises:

The request is serialized for parsing the request in accordance with the order in which the request was received.
A control method for operating a storage device, the method comprising:

And sending a request permission request to the storage device, where the storage device grants the operation authority of the management node that sends the request permission request according to the application permission request, and sends a response message to the management node;

Receiving the response message sent by the storage device;

And sending, according to the response message, an operation request to the storage device, for the storage device to perform an operation according to the operation request.
A storage device, characterized in that the storage device comprises:

a receiving module, configured to receive at least one request sent by at least one management node;

a processing module, configured to: when one of the at least one request is a request permission request, determine, according to the current permission status, whether to grant the operation authority of the management node that sends the application permission request;

The processing module is further configured to: when one of the at least one request is an operation request, determine, according to the current permission status, whether the management node that sends the operation request has an operation authority, when the operation request is sent When the management node has the operation authority, the operation is performed according to the operation request.
The storage device according to claim 9, wherein the processing module determines, according to the state table, whether to grant a management node operation authority for transmitting the application permission request or determining, according to the state table, a management node that sends the operation request Whether it has operational rights.
The storage device according to claim 10, wherein the processing module is further configured to update the state table when the operation authority of the management node that sends the request permission request is given.
The storage device according to claim 11, wherein the storage device further comprises a sending module, configured to send a response message to the management node that is configured to send the request permission request, so as to facilitate the management node that requests the permission request Sending an operation request to the storage device according to the response message.
The storage device according to claim 9, wherein the processing module is specifically configured to:

Querying whether the management node marked in the status table is a management node that sends the operation request;

When the management node marked in the status table is the management node that sends the operation request, it is determined that the management node that sends the operation request has an operation authority.
The storage device according to any one of claims 9 to 13, wherein the storage device further comprises a release module, configured to release the operation authority after the performing the operation according to the operation request is completed.
The control method of operating a storage device according to claim 9, wherein the processing module is further configured to:

The request is serialized for parsing the request in accordance with the order in which the request was received.
A management node, wherein the management node comprises:

a sending module, configured to send an application permission request to the storage device, where the storage device grants the operation authority of the management node that sends the request permission request according to the application permission request, and sends a response message to the management node;

a receiving module, configured to receive the response message sent by the storage device;

The sending module is further configured to send an operation request to the storage device according to the response message, for the storage device to perform an operation according to the operation request.